Problems with post processing

Today I got through post processing and about half of the audio section of the curriculum. Some problems I ran into today with post processing is that the animation outlines (which are square) are now visible because of something I did. I went back in and deleted all of the post processing changes I made but the problem still remains. I will go ask someone for help tomorrow. The audio section has been a breeze so far. Here I have attached a gif of the visual problem I have run into.